Number Sequence -a string of numbers, or terms, in a certain order

Constant Difference -a difference from one term to the next that stays the same

Variable -letters that are used to represent quantities in algebra

Algebraic Expressions -expressions hat are formed by combining numbers and variables using the operations of addition, subtraction, multiplication, and division

Grouping Symbols and Inclusion Symbols -parentheses, ( ), brackets, [ ]. braces, { }, and a fraction bar, --

Quadrants -a horizontal and vertical number line used to divide a plane into four regions

Coordinate Plane -a plane set up according to the system linked

Ordered Pair -the coordinates of a point on a coordinate plane

Scatter Plot -a plot that shows how two variables relate to each other by showing how closely the data points cluster to a line